Moving bulk materials



Jam W, 1950 D. o. MARTIN 2,494,953

MOVING BULK MATERIALS Filed Sept. 17, 1946 3 Sheets-Sheet l ll/ I I III! luz'uutor Jam, W, WSU D. o. MARTIN 2,494,953

MOVING BULK MATERIALS Filed Sept. 17, 1946 3 Sheets-Sheet 2 x In 7 1) Q. WI m w Inventor K\\\\\\\\\\\\\\\\ d l l A Jam, 11?, WSU D. o. MARTIN MOVING BULK MATERIALS 3 Sheets-Sheet 5 Filed Sept. 17, 1946 a TIN DENZIL. U.

Patented Jan. 17, i959 i rates mesne assignments, to Robertson Engineering Corporation, San. Francisco; Califi, a GOIPOE'Sir tiomof Galifornia Application Septemberll, 1946, Serial No. 697,545

This invention relates to movingbulk materialsand' more particularly for thetransfer of bulk materials, such as grain, sand and the'likefrom a bin to a. suitable receptacle.

Another' object" is to facilitate the unloading of bulk materials from" the interior of a'boxcar; bin or similar receptacle in which such material's my be stored;

A furtherobject is to avoid, the dangers incident tothe handling otbulk materials; by avoid-- ing the necessity for-having an attendant enter thebin or box car during-the removatof'thecon tents thereof; 4 7

Among its features: myinventi'on embodies a boom adapted't'o extendacross the openfront of a bin or the like, a bucket advancing and sustaining pulley movable longitudinal1y"of"- the boom, a bucket retracting; pulley on the boom; a guide pulley'adapted to be 'fixed' in the bin near its rear end; a bucket advancing andsustaining: cable extending 'around the bucket advancing sustaining pulley;v a bucket retracting cableex=-- tending around the bucket retracting pulley and guide pulley, and a di'ag;bucket connected to theadjacent ends'of'thecables. I V 7 Other features" include power means-10y whicltr pull may be transmittedtothecables'tocausethe' bucket to advance and retract'withinthebin; and: power. means to shift the bucket advancing and sustaining pulley longitudinally (if-the boomz In the drawings.

Figure'l is atop plan view'of'a material moving device embodying the features of this invention;

Figure 2 is 'a side view'of the material moving equipment illustrated'in'Figure?1;

Figure 3 is an endview'thereof;

Figure 4 is" an enlarged: fragm'entarysectional View taken. substantially along-the" line 44 of FigureZ, and

Figure 5. is an enlarged". fragmentary sectional view taken substantially along' the line 5--5 of FigureZi Referring to. the drawings in detail; a; base" III is provided adjacent opposite side edges with np wardly extending columns" II; the upper'endsof which incline inwardlyas at I2 (Fig; 3), andter minate at their upper ends in spaced parallel supports Itwhich are pierced: toreceive axially aligned bolts f4 upon which fiangedwh'eels l5-are rotatably supported-.- The upper-and lower ends of the spaced parallel extensions l-3 are held irr spaced parallel relation= by'transversely extend-- ing bridgeplat'es IE to form a pair of longitudinally spaced substantially" boxlik'e structures in:

14 Claims; (Cl. 214'44.)

in the drawings, the wheels 15* have. their flangesturned outwardlyso as to. rotate. adjacent the:-

spaced upstandin members l3.

A boom designated generally I'll comprising a pair of spacediparalle'll channels l:8, held in; spaced.

parallel rela-tion by crossibraces I?! so that the.

flanges 20 off the channels I18 extend; outwardly and ride on thewhe'e'ls l5: previously referred to.. Inasmuch asall the-bolts IA- are'in the same'horia zontal plane it" will: be obvious that the boom l'l' may slide. horizontally: between the uprights 13: previously described Mounted. for longitudinal sliding movement on the boom I'l is a. carriage designated generally 2| which' comprises a1 substantially U-shaped: yoke 22: eachleg-aof=;which: is pierced to receive a bolt 23 which; forms the; axle about which a roller-24' rotates Depending from-the bight-por tion' of; the u shaped: yoke: 22' is, avpair of; longitudinall y' spaced ears; 25! which are pierced to"- receive: a pivot: pin 26; the: purpose, of which will;

a will be, more fully hereinafter explained.

Extendingupwardly from the-boom H near its outer? endzis a: pairv of longitudinally spaced earsw supporting; a pivot pin 31" which extends par-- allel; to the longitudinal axis of the boom and. pivotally support's a yoke 32- in which a bucket,

retracting pulley:- 33- is rotatably supported. As.

illustrated in Figured this pulley is adapted tovbel rotated upwardly through anarc-of one hundred? eighty degrees so as-to: be operable from either sideofzthevboomi Mounted attheextremeouter endof'. the boom;

H for rotation about, an axis: extending; trans versely of thelongitudinah axis of; the boom ista: pulley34' over which; a carriage" advancing cable; 3.5isltrained; One end of this cabl is attached tot the; eye; 26; of' the. carriage. 2i while. its opposite end is trained over' an idler pulley 3%- carried by the boom near its opposite end. This cable then extends downwardly and is: adapted to be which the fianged wheel-sli rotata As=illustrated 5 5 wound upon a winding drum 31 mounted for nected. This trench jack 39 is preferably firmly secured adjacent the back wall of the bin or car to be unloaded, and trained over the pulley 4| and the bucket retracting pulley 32 is a cable 42, one end of which is attached to the rear side of a drag bucket 43, while the opposite end of said cable is trained over an idler pulley 44 and thence downwardly to be wound upon a winding drum 45.

The drum 45 is mounted to rotate in a suitable bracket 46 carried by the base l and it will be seen that when the cable 42 is wound thereon, pull will be exerted on the bucket 43 to move it toward the back of the bin or car in which the device is being used.

A bucket advancing cable 41 is attached to the bail 48 of the drag bucket 43 and is trained over the pulley 21 from whence it passes longitudinally along the underside of the boom to an idler pulley 49 mounted between the standards I I at the forward end of the base Ill. The cable 41 then passes downwardly to a winding drum 50 mounted for rotation in a pair of spaced brackets carried by the base l0. It will thus be seen that when the cable 41 is wound upon the drum 50 the drag bucket 43 will be moved toward the boom and away from the back wall of the bin or car.

A prime mover 52 is mounted on the base In and has driving connection with a gear train 53 through the medium of a drive belt 54. The gear train is connected through a series of clutches to the drive shafts of the drums 31, 45 and 50 controlled respectively by clutch levers 55, 56 and 51 that it extends transversely across the open front side of the bin in which the material to be unloaded is confined. The lever 55 is then manipulated to set the drum 31 in operation to wind the cable thereon and hence mov the carriage 2| to the desired position in front of the bin. Having thus positioned the carriage and the bucket advancing and sustaining roller 21 to its proper place in front of the bin, the hand lever 56 is manipulated to cause the drum to be driven so as to wind the cable 42 thereon. The taking up of the cable 42 causes the bucket 43 to be moved toward the rear wall of the bin over the material contained therein, and when the bucket has been moved to a point near the rear wall of the bin or car, rotation of the drum 45 is stopped and the lever 51 is then manipulated to set the drum into motion to wind the cable 41 thereon and cause the bucket 43 to scrape the contents of the bin toward the front thereof, simultaneously fill-.

of the boom I! and toward the standards When the bucket has achieved the desired position its contents may be discharged and the operation repeated until the entire contents of the bin has been removed.

While in'the foregoing there has been shown and described the preferred embodiment of this invention it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

I claim:

1. A device for moving bulk materials from a bin or the like having side walls, a back wall and an open front, which includes, a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a, bucket advancing and sustaining pulley movable longitudinall of the boom, a bucket retracting pulley on the boom, a guide pulley adapted to be fixed in the bin near its rear end, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to the adjacent ends of the cables.

2. A device for moving bulk materials from a bin or the like having side walls, a back wall and an open front, which includes, a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a bucket advancing and sustaining pulley movable longitudinally of the boom, a bucket retracting pulley on the boom, a guide pulley adapted to be fixed in the bin near its rear end, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extendr 3. A device for moving bulk materials from a bin or the like having side walls, a back wall and an open front, which includes, a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in,

spaced parallel relation to and above the plane of the bottom thereof, a, bucket advancing and sustaining pulley movable longitudinally of the boom, a bucket retracting pulley on the boom, a guide pulley adapted-to be fixed in the bin near its.

rear end, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to the adjacent ends of the cables, and power driven drums upon which the opposite ends of the cables are adapted to be wound.

-4. A device for moving bulk materials from a".

bin or the like having side walls, a back wall and an open front, which includes, a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of,

the bottom thereof, a bucket advancing and sustaining pulley movable longitudinally of the boom, I

a bucket retracting pulley on the boom, a guide pulley adapted to be fixed in the bin near its greases tending around the bucket retracting pulley and the guide pulley and a drag bucket connected to the adjacent ends of the cables, and means to shift the bucket advancing and sustaining pulley longitudinally ofthe boom, and power driven drums upon which the opposite ends of the cables are adapted to be wound.

5. A device for moving bulk materials from 'a bin or the like having side walls, a back wall and.

an open front, which includes a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a carriage-movable longitudinally of the boom, a bucket advancing and sustaining pulley carried by the carriage, a bucket retract ing pulley on the boom, a trench jack anchored transversely of the bin near its rear wall, a guide pulley carried by the trench jack, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to adjacent ends of the cables. 4

6. A device for moving bulk materials from a bin or the" like having side wal1s',a back wall and an open front, which includes a boom mounted to move in a rectilinearpath into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a carriage movable longitudinally of the boom, a bucket advancing and sustainin pulley carried by the carriage, a bucket retracting pulley on the boom, a trench jack anchored transversely of the bin near its rear wall, a guide pulley carried by the trench jack, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to adjacent ends of the cables, and means to shift the carriage longitudinally of the boom.

'7. A device for moving bulk materials from a bin or the like having side walls, a back wall and an open front, which includes a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a carriage movable longitudinally of the boom, a bucket advancing and sustaining pulley carried by the carriage, a bucket retracting pulley on the boom, a trench jack anchored transversely of the bin near its rear Wall, a guide pulley carried by the trench jack, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to adjacent ends of the cables, and power driven drums upon which the opposite ends of the cables are adapted to be wound.

8. A device for moving bulk materials from a bin or the like having side walls, a back wall and an open front, which includes a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a carriage movable longitudinally of the boom, a bucket advancing and sustaining 6 pulley carried by the carriage, a; bucket retract-' ing pulley on the boom, a trench jack anchored transverselyo'f the bin near its rear wall, a guide. pulley carried by the trench jack, abucket advancing and sustaining cable extending around the bucket advancing-and sustaining pulley, a bucket retracting' cable extending around the bucket retractingpulley and the guide pulley and adrag-bucket connected to adjacent ends of the cables", and means to shift the carriage lon gitudinally of the boom, and power driven drums upon which the' opposite ends of the cables are adapted to be wound.-

-9.' A device-for movingbulk materials from a bin or the like havingside walls, a back wall and open-front,- which includes, a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel"relation toand above the plane of the b'ottoin thereof, a bucket advancing and sustaining pulley movable longitudinally of the boom, a bucket retracting-pulley on the boom, a guide pulley adapted't'o befixed in the bin near its' rear end-'ya. bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extend ingaround the bucket retracting pulley and the guidepulley and a drag bucket connected to the adjacent ends or the cables, and power driven means selectively to exert pull on the opposite ends of the cables. 4 10. A device for moving'bulkmaterials from a binor-the like having side walls, a back wall and an open front, which includes a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a carriage movable longitudinally of the boom, a bucket advancing and sustaining pulley carried by the carriage, a bucket retracting pulley on the boom, a trench jack anchored transversely of the bin near its rear wall, a guide pulley carried by the trench jack, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to adjacent ends of the cables, and power driven means selectively to exert pull on the opposite ends of the cables.

11. A device for moving bulk materials from a bin or the like having side walls, a back wall and an open front, which includes, a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a bucket advancing and sustaining pulley movable longitudinally of the boom, a bucket retracting pulley on the boom, a guide pulley adapted to be fixed in the bin near its rear end, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to the adjacent ends of the cables, and power driven means to move the bucket advancing and sustaining pulley longitudinally of the boom.

12. A device for moving bulk materials from a bin or the like having side walls, a back wall and an open front, which includes a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a carriage movable longitudinally of the boom, a bucket advancing and sustaining pulley carried by the carriage, a bucket retracting pulley on the boom, a trench jack anchored transversely of the bin near its rear wall, a guide pulley carried by the trench jack, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to adjacent ends of the cables, and power driven means to move the carriage longitudinally of the boom.

13. A device for moving bulk materials from a bin or the like having side walls, a back wall and an open front, which includes a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a carriage movable longitudinally of the boom, a bucket advancing and sustaining pulley pivotally supported on the carriage to swing about an axis parallel with the longitudinal axis of the boom, a guide pulley adapted to be fixed in the bin near its rear end, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to the adjacent ends of the cables.

14. A device for moving bulk materials from a bin or the-like having side walls, a back wall and an open front, which includes a boom mounted to move in a rectilinear path into a position to extend across the open front of the bin in spaced parallel relation to and above the plane of the bottom thereof, a carriage movable longitudinally of the boom, a bucket advancing and sustaining pulley pivotally supported on the carriage to swing about an axis parallel with the longitudinal axis of the boom, a guide pulley adapted to be fixed in the bin near its rear end, a bucket advancing and sustaining cable extending around the bucket advancing and sustaining pulley, a bucket retracting cable extending around the bucket retracting pulley and the guide pulley and a drag bucket connected to the adjacent ends of the cables, power driven means to move the carriage longitudinally of the boom and power driven drums upon which the opposite ends of the cables are adapted to be wound.

DENZIL O. MARTIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,222,686 Shanor Apr. 17, 1917 1,528,269 Schoenfeld Mar. 3, 1925 1,570,386 MacCarthy et a1. Jan. 19, 1926 2,050,133 Smith Aug. 4, 1936 2,305,381 Frauenheim, Jr. Dec. 15, 1942 

